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245535431 = 2961138799
BaseRepresentation
bin11101010001010…
…01001011000111
3122010000111021212
432220221023013
51000324113211
640210402035
76041005511
oct1650511307
9563014255
10245535431
11116664449
126a29031b
133bb3b54b
1424876bb1
151685138b
hexea292c7

245535431 has 8 divisors (see below), whose sum is σ = 258168000. Its totient is φ = 233180640.

The previous prime is 245535391. The next prime is 245535439. The reversal of 245535431 is 134535542.

It is a happy number.

245535431 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 245535431 - 222 = 241341127 is a prime.

It is a super-2 number, since 2×2455354312 = 120575295752711522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245535439) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67631 + ... + 71168.

It is an arithmetic number, because the mean of its divisors is an integer number (32271000).

Almost surely, 2245535431 is an apocalyptic number.

245535431 is a deficient number, since it is larger than the sum of its proper divisors (12632569).

245535431 is a wasteful number, since it uses less digits than its factorization.

245535431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138889.

The product of its digits is 36000, while the sum is 32.

The square root of 245535431 is about 15669.5702238447. The cubic root of 245535431 is about 626.1879749674.

The spelling of 245535431 in words is "two hundred forty-five million, five hundred thirty-five thousand, four hundred thirty-one".

Divisors: 1 29 61 1769 138799 4025171 8466739 245535431